Zainal Abidin NAK, Mohd Nayan N, Jamel N, Ali A. Investigation of piezoelectric harvester performance for several shape of piezoelectric using finite element method. TSSA [Internet]. 2023 Dec. 30 [cited 2024 Oct. 22];6(2):1-16. Available from: http://tssa.my/index.php/jtssa/article/view/212